Season 4, Episode 18: "The Old Man"

Hi. I'm Jerry Seinfeld. The agency sent me.

-Agency? -Yeah. Is this Sid Fields' residence?

-Sid Fields? -What the hell is it?

-Mr. Fields? -What?

Hi. I'm Jerry Seinfeld. The agency sent me.

The agency? What agency? The CIA?

-No, no, the senior-- -Who let you in here?

-The woman. -Oh, her.